'''
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9.
The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.
'''
def solution(limit):
    qualified = []
    for i in range(limit):
        if i % 3 ==0 or i % 5 == 0:
            qualified.append(i)

    sum = 0
    for i in qualified:
        sum += i
    return sum

print("Total sum is:", solution(1000))

